US20130050045A1 - Multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement - Google Patents
Multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement Download PDFInfo
- Publication number
- US20130050045A1 US20130050045A1 US13/589,226 US201213589226A US2013050045A1 US 20130050045 A1 US20130050045 A1 US 20130050045A1 US 201213589226 A US201213589226 A US 201213589226A US 2013050045 A1 US2013050045 A1 US 2013050045A1
- Authority
- US
- United States
- Prior art keywords
- turn loop
- ground plane
- slots
- plane element
- radio communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
Definitions
- the present disclosure relates to a multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement.
- Internal antennas have been used for some time in portable radio communication devices. There are a number of advantages connected with using internal antennas compared to protruding antennas. For example, internal antennas are small and light, making them suitable for applications wherein size and weight are of importance, such as in mobile phone, personal digital assistants (PDAs), portable computers, or similar devices.
- PDAs personal digital assistants
- NFC Near Field Communication
- a multiple-turn loop element is arranged in a first layer.
- a ground plane element is arranged in a second layer.
- the first and second layers are arranged in parallel.
- the multiple-turn loop element is arranged on top of the ground plane element.
- the ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.
- a portable radio communication device generally includes a metal casing and a multiple-turn loop element arranged on the metal casing.
- the metal casing forms a ground plane element having slots arranged along the inside of the multiple-turn loop element. The slots are operable for interrupting eddy currents in the ground plane element.
- a portable radio communication device includes a metal casing and a multiple-turn loop element arranged on the metal casing.
- the metal casing forms a ground plane element having slots arranged along the inside of at least two parallel sides of the multiple-turn loop element.
- the multiple-turn element is an NFC antenna.
- the slots are operable for preventing eddy currents induced in the ground plane element NFC operation.
- FIG. 1 is a schematic drawing illustrating an NFC antenna arranged on top of a metal casing.
- FIG. 2 is a schematic drawing illustrating a multiple-turn loop antenna arranged on top of a ground plane element having slots according to a first exemplary embodiment.
- FIG. 3 is a schematic drawing illustrating a multiple-turn loop antenna arranged on top of a ground plane element having slots according to a second exemplary embodiment.
- FIG. 4 is a schematic drawing illustrating multiple-turn loop antenna arranged partly off a ground plane element having slots according to a third exemplary embodiment.
- NFC antennas Multiple-turn loop elements, typically used for e.g. NFC antennas, will functionally be short-circuited when arranged on top of or under a metal casing forming a ground plane element as schematically illustrated in FIG. 1 .
- portable radio communication devices typically comprise a large ground plane element 2 , which makes it difficult to provide a NFC antenna 1 therein.
- the NFC antenna 1 is schematically illustrated in FIG. 1 as a hollow square.
- a multiple-turn loop antenna arrangement generally includes a multiple-turn loop element arranged in a first layer and a ground plane element arranged in a second layer.
- the first and second layers are arranged in parallel and the multiple-turn loop element is arranged on top of the ground plane element.
- the ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.
- the multiple-turn loop element can be utilized as e.g. an NFC antenna despite being arranged on e.g. the inside or outside of a metal casing of a portable radio communication device, such as a smart phone.
- the multiple-turn loop element is preferably square-shaped.
- the slots are preferably arranged along the inside of the multiple-turn loop element, in order to provide good interruption of eddy currents in the ground plane element. Even more preferably, the slots are arranged along the inside of two parallel sides of the multiple-turn loop element. Yet more preferably, the slots extend to an edge of the ground plane element.
- the slots are preferably arranged also along the inside of a third side of the multiple-turn loop element and extend in one point to an edge of the ground plane element.
- the ground plane element is advantageously a metal cover for a portable radio communication device.
- the multiple-turn loop element is preferably an NFC antenna.
- a side of the multiple-turn loop element is preferably arranged off the ground plane element.
- Exemplary embodiments are also provided of portable radio communication devices that include such multiple-turn loop antenna arrangements.
- the term radiating element is intended to cover electrically conductive elements arranged for receiving and/or transmitting radio signals.
- FIG. 2 illustrates a first exemplary embodiment of a multiple-turn loop antenna arrangement for a portable radio communication device (e.g., a mobile phone or similar device, etc.).
- the multiple-turn loop antenna arrangement comprises a multiple-turn loop element 1 arranged in a first layer.
- a ground plane element 2 is arranged in a second layer.
- the first and second layers are arranged in parallel.
- the multiple-turn loop element 1 is arranged on top of the ground plane element 2 .
- the multiple-turn loop element 1 comprises a plurality of turns, concentrically arranged in a planar plane, which schematically has been illustrated as a hollow square in FIG. 2 .
- the multiple-turn loop element 1 has been illustrated as square-shaped, the element 1 could alternatively have other shapes, such as e.g. a circular shape, etc.
- the multiple-turn loop antenna arrangement can be used with the multiple-turn loop element 1 facing away from the portable radio communication device or facing towards the portable radio communication device.
- a dielectric film layer is typically arranged there between.
- the multiple-turn loop antenna arrangement is configured for NFC.
- the ground plane element 2 comprises two slots 3 and 4 arranged along the inside of two parallel sides of the multiple-turn loop element 1 .
- the slots 3 and 4 extend to the end of the ground plane element 2 , and thus are two open ended slots.
- the slots 3 and 4 are preferably only a fraction of 1 millimeter (mm) wide. Possible addition of components across the slots is acceptable as long as the series capacitance is less than 1 picofarad (pF) for NFC operation.
- the slots 3 and 4 should preferably extend at least 2 ⁇ 3 of the length of the sides of the multiple-turn loop element 1 , or more preferably along the whole length of the sides of the multiple-turn loop element 1 . Even longer slots work, but does not increase performance much.
- FIG. 3 illustrates a multiple-turn loop antenna arrangement according to a second exemplary embodiment. This second embodiment is identical to the first exemplary embodiment described above apart from the following.
- the slots 5 along the inside of the multiple-turn loop element 1 are connected and extend in a common open end of the ground plane element 2 .
- the connection is preferably along an inside of the multiple-turn loop element 1 .
- FIG. 4 illustrates a multiple-turn loop antenna arrangement according to a third exemplary embodiment.
- This third exemplary embodiment is identical to the first exemplary embodiment describe above apart from the following.
- the multiple-turn loop element 1 is arranged partly off-ground the ground plane element 2 , preferably having one side of the square-shaped multiple loop element 1 extending off the ground plane element 2 . In this way, the slots 3 and 4 do not need to cross that side of the square-shaped multiple loop element 1 to be open ended.
- the multiple-turn loop antenna arrangement is typically generally planar, but may e.g. be partly folded over the top edge of a mobile phone to facilitate e.g. NFC operation.
- the multiple-turn loop element 1 may in this way be provided completely over or partially over the ground plane element 2 of the portable radio communication device.
- Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms (e.g., different materials, etc.), and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
- first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- Spatially relative terms such as “inner,” “outer,” “beneath”, “below”, “lower”, “above”, “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Abstract
Description
- This application claims benefit and priority of European Patent Application No. 11178226.4 filed Aug. 22, 2011. The entire disclosure of the above application is incorporated herein by reference.
- The present disclosure relates to a multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement.
- This section provides background information related to the present disclosure which is not necessarily prior art.
- Internal antennas have been used for some time in portable radio communication devices. There are a number of advantages connected with using internal antennas compared to protruding antennas. For example, internal antennas are small and light, making them suitable for applications wherein size and weight are of importance, such as in mobile phone, personal digital assistants (PDAs), portable computers, or similar devices.
- But the application of internal antennas in a mobile phone puts some constraints on the configuration of the radiating element of the antenna. In particular, the space for an internal antenna arrangement is limited in a portable radio communication device. These constraints may make it difficult to find a configuration of the antenna arrangement that provides for desired use. This is especially true for antennas intended for use with radio signals of relatively low frequencies as the desired physical length of such antennas are large compared to antennas operating with relatively high frequencies.
- One specific application operating in a relatively low frequency band is the Near Field Communication (NFC) application. The NFC operating band is about 13 Megahertz (MHz).
- This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
- According to various aspects, exemplary embodiments are disclosed of multiple-turn loop antenna arrangements or assemblies. In an exemplary embodiment, a multiple-turn loop element is arranged in a first layer. A ground plane element is arranged in a second layer. The first and second layers are arranged in parallel. The multiple-turn loop element is arranged on top of the ground plane element. The ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.
- In another exemplary embodiment, a portable radio communication device generally includes a metal casing and a multiple-turn loop element arranged on the metal casing. The metal casing forms a ground plane element having slots arranged along the inside of the multiple-turn loop element. The slots are operable for interrupting eddy currents in the ground plane element.
- Another exemplary embodiment of a portable radio communication device includes a metal casing and a multiple-turn loop element arranged on the metal casing. The metal casing forms a ground plane element having slots arranged along the inside of at least two parallel sides of the multiple-turn loop element. The multiple-turn element is an NFC antenna. The slots are operable for preventing eddy currents induced in the ground plane element NFC operation.
- Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
- The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
-
FIG. 1 is a schematic drawing illustrating an NFC antenna arranged on top of a metal casing. -
FIG. 2 is a schematic drawing illustrating a multiple-turn loop antenna arranged on top of a ground plane element having slots according to a first exemplary embodiment. -
FIG. 3 is a schematic drawing illustrating a multiple-turn loop antenna arranged on top of a ground plane element having slots according to a second exemplary embodiment. -
FIG. 4 is a schematic drawing illustrating multiple-turn loop antenna arranged partly off a ground plane element having slots according to a third exemplary embodiment. - Example embodiments will now be described more fully with reference to the accompanying drawings.
- Multiple-turn loop elements, typically used for e.g. NFC antennas, will functionally be short-circuited when arranged on top of or under a metal casing forming a ground plane element as schematically illustrated in
FIG. 1 . Today, portable radio communication devices typically comprise a largeground plane element 2, which makes it difficult to provide aNFC antenna 1 therein. TheNFC antenna 1 is schematically illustrated inFIG. 1 as a hollow square. - Disclosed herein are exemplary embodiments of multiple-turn loop antenna arrangements, which are not significantly affected by a close proximity ground plane element in a portable radio communication device. In an exemplary embodiment, a multiple-turn loop antenna arrangement generally includes a multiple-turn loop element arranged in a first layer and a ground plane element arranged in a second layer. The first and second layers are arranged in parallel and the multiple-turn loop element is arranged on top of the ground plane element. The ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.
- The multiple-turn loop element can be utilized as e.g. an NFC antenna despite being arranged on e.g. the inside or outside of a metal casing of a portable radio communication device, such as a smart phone. For NFC utilization, the multiple-turn loop element is preferably square-shaped.
- The slots are preferably arranged along the inside of the multiple-turn loop element, in order to provide good interruption of eddy currents in the ground plane element. Even more preferably, the slots are arranged along the inside of two parallel sides of the multiple-turn loop element. Yet more preferably, the slots extend to an edge of the ground plane element.
- In order to provide a single open point in the ground plane element, the slots are preferably arranged also along the inside of a third side of the multiple-turn loop element and extend in one point to an edge of the ground plane element. The ground plane element is advantageously a metal cover for a portable radio communication device.
- The multiple-turn loop element is preferably an NFC antenna. When available space in a portable radio communication device allows off-ground positioning of the multiple-turn loop element, a side of the multiple-turn loop element is preferably arranged off the ground plane element.
- Exemplary embodiments are also provided of portable radio communication devices that include such multiple-turn loop antenna arrangements. As used herein, the term radiating element is intended to cover electrically conductive elements arranged for receiving and/or transmitting radio signals.
-
FIG. 2 illustrates a first exemplary embodiment of a multiple-turn loop antenna arrangement for a portable radio communication device (e.g., a mobile phone or similar device, etc.). As shown, the multiple-turn loop antenna arrangement comprises a multiple-turn loop element 1 arranged in a first layer. Aground plane element 2 is arranged in a second layer. The first and second layers are arranged in parallel. The multiple-turn loop element 1 is arranged on top of theground plane element 2. The multiple-turn loop element 1 comprises a plurality of turns, concentrically arranged in a planar plane, which schematically has been illustrated as a hollow square inFIG. 2 . Although the multiple-turn loop element 1 has been illustrated as square-shaped, theelement 1 could alternatively have other shapes, such as e.g. a circular shape, etc. - Even though the multiple-
turn loop element 1 is described as being arranged on top of theplanar element 2, the multiple-turn loop antenna arrangement can be used with the multiple-turn loop element 1 facing away from the portable radio communication device or facing towards the portable radio communication device. - For providing galvanic isolation between the multiple-
turn loop element 1 and theground plane element 2, a dielectric film layer is typically arranged there between. Advantageously, the multiple-turn loop antenna arrangement is configured for NFC. - With continued reference to
FIG. 2 , theground plane element 2 comprises twoslots turn loop element 1. Theslots ground plane element 2, and thus are two open ended slots. By this configuration, eddy currents induced in theground plane element 2 by e.g. NFC operation are prevented. Theslots - The
slots turn loop element 1, or more preferably along the whole length of the sides of the multiple-turn loop element 1. Even longer slots work, but does not increase performance much. -
FIG. 3 illustrates a multiple-turn loop antenna arrangement according to a second exemplary embodiment. This second embodiment is identical to the first exemplary embodiment described above apart from the following. - In this second exemplary embodiment, the
slots 5 along the inside of the multiple-turn loop element 1 are connected and extend in a common open end of theground plane element 2. The connection is preferably along an inside of the multiple-turn loop element 1. -
FIG. 4 illustrates a multiple-turn loop antenna arrangement according to a third exemplary embodiment. This third exemplary embodiment is identical to the first exemplary embodiment describe above apart from the following. - The multiple-
turn loop element 1 is arranged partly off-ground theground plane element 2, preferably having one side of the square-shapedmultiple loop element 1 extending off theground plane element 2. In this way, theslots multiple loop element 1 to be open ended. - The multiple-turn loop antenna arrangement is typically generally planar, but may e.g. be partly folded over the top edge of a mobile phone to facilitate e.g. NFC operation. The multiple-
turn loop element 1 may in this way be provided completely over or partially over theground plane element 2 of the portable radio communication device. - Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms (e.g., different materials, etc.), and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail. In addition, advantages and improvements that may be achieved with one or more exemplary embodiments of the present disclosure are provided for purpose of illustration only and do not limit the scope of the present disclosure, as exemplary embodiments disclosed herein may provide all or none of the above mentioned advantages and improvements and still fall within the scope of the present disclosure.
- Specific dimensions, specific materials, and/or specific shapes disclosed herein are example in nature and do not limit the scope of the present disclosure. The disclosure herein of particular values and particular ranges of values (e.g., frequency ranges or bandwidths, etc.) for given parameters are not exclusive of other values and ranges of values that may be useful in one or more of the examples disclosed herein. Moreover, it is envisioned that any two particular values for a specific parameter stated herein may define the endpoints of a range of values that may be suitable for the given parameter (i.e., the disclosure of a first value and a second value for a given parameter can be interpreted as disclosing that any value between the first and second values could also be employed for the given parameter). Similarly, it is envisioned that disclosure of two or more ranges of values for a parameter (whether such ranges are nested, overlapping or distinct) subsume all possible combination of ranges for the value that might be claimed using endpoints of the disclosed ranges.
- The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a”, “an” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.
- When an element or layer is referred to as being “on”, “engaged to”, “connected to” or “coupled to” another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to”, “directly connected to” or “directly coupled to” another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. The term “about” when applied to values indicates that the calculation or the measurement allows some slight imprecision in the value (with some approach to exactness in the value; approximately or reasonably close to the value; nearly). If, for some reason, the imprecision provided by “about” is not otherwise understood in the art with this ordinary meaning, then “about” as used herein indicates at least variations that may arise from ordinary methods of measuring or using such parameters. For example, the terms “generally”, “about”, and “substantially” may be used herein to mean within manufacturing tolerances.
- Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- Spatially relative terms, such as “inner,” “outer,” “beneath”, “below”, “lower”, “above”, “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements, intended or stated uses, or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11178226A EP2562868A1 (en) | 2011-08-22 | 2011-08-22 | A multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement |
EP11178226.4 | 2011-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130050045A1 true US20130050045A1 (en) | 2013-02-28 |
Family
ID=44651152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/589,226 Abandoned US20130050045A1 (en) | 2011-08-22 | 2012-08-20 | Multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement |
Country Status (2)
Country | Link |
---|---|
US (1) | US20130050045A1 (en) |
EP (1) | EP2562868A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105261822A (en) * | 2015-09-15 | 2016-01-20 | 惠州硕贝德无线科技股份有限公司 | Nfc antenna assembly and mobile equipment |
CN105826679A (en) * | 2016-05-12 | 2016-08-03 | 惠州硕贝德无线科技股份有限公司 | Near-field antenna apparatus for three-segment type metal rear cover |
CN105870597A (en) * | 2016-04-22 | 2016-08-17 | 惠州硕贝德无线科技股份有限公司 | Dual-antenna scheme sharing metal back cover |
US20160351991A1 (en) * | 2015-06-01 | 2016-12-01 | AAC Technologies Pte. Ltd. | NFC Antenna Structure |
US20170012343A1 (en) * | 2015-07-08 | 2017-01-12 | Shenzhen Sunway Communication Co.,Ltd. | Nfc antenna with a metal back cover |
WO2018019080A1 (en) * | 2016-07-28 | 2018-02-01 | 维沃移动通信有限公司 | Nfc antenna structure and mobile terminal |
KR20180058421A (en) * | 2016-11-24 | 2018-06-01 | 삼성전자주식회사 | Electronic Device for Including Conductive Housing |
CN108110402A (en) * | 2016-11-25 | 2018-06-01 | 康菲德斯合股公司 | RFID transponders |
US11283173B2 (en) * | 2012-06-28 | 2022-03-22 | Intel Corporation | Thin chassis near field communication (NFC) antenna integration |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104167605B (en) * | 2013-05-17 | 2018-09-07 | 深圳富泰宏精密工业有限公司 | The wireless communication device of antenna structure and the application antenna structure |
AT514622B1 (en) * | 2013-07-24 | 2015-08-15 | Seibersdorf Labor Gmbh | housing wall |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050116870A1 (en) * | 2001-12-18 | 2005-06-02 | Hanyang Wang | Monopole slot antenna |
US20070164868A1 (en) * | 2005-12-14 | 2007-07-19 | Deavours Daniel D | Microstrip antenna for rfid device |
US20080048915A1 (en) * | 2006-08-23 | 2008-02-28 | Tze-Hsuan Chang | Wideband Dielectric Resonator Monopole Antenna |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003331250A (en) * | 2002-03-05 | 2003-11-21 | Mitsubishi Materials Corp | Small disk with rfid |
JP2007324865A (en) * | 2006-05-31 | 2007-12-13 | Sony Chemical & Information Device Corp | Antenna circuit, and transponder |
JP5150369B2 (en) * | 2008-05-28 | 2013-02-20 | 京セラ株式会社 | Communication equipment |
WO2011036962A1 (en) * | 2009-09-25 | 2011-03-31 | 株式会社村田製作所 | Antenna device and handheld terminal |
-
2011
- 2011-08-22 EP EP11178226A patent/EP2562868A1/en not_active Withdrawn
-
2012
- 2012-08-20 US US13/589,226 patent/US20130050045A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050116870A1 (en) * | 2001-12-18 | 2005-06-02 | Hanyang Wang | Monopole slot antenna |
US20070164868A1 (en) * | 2005-12-14 | 2007-07-19 | Deavours Daniel D | Microstrip antenna for rfid device |
US20080048915A1 (en) * | 2006-08-23 | 2008-02-28 | Tze-Hsuan Chang | Wideband Dielectric Resonator Monopole Antenna |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11283173B2 (en) * | 2012-06-28 | 2022-03-22 | Intel Corporation | Thin chassis near field communication (NFC) antenna integration |
US20160351991A1 (en) * | 2015-06-01 | 2016-12-01 | AAC Technologies Pte. Ltd. | NFC Antenna Structure |
US10147999B2 (en) * | 2015-07-08 | 2018-12-04 | Shenzhen Sunway Communication Co., Ltd. | NFC antenna with a metal back cover |
US20170012343A1 (en) * | 2015-07-08 | 2017-01-12 | Shenzhen Sunway Communication Co.,Ltd. | Nfc antenna with a metal back cover |
WO2017004917A1 (en) * | 2015-07-08 | 2017-01-12 | 深圳市信维通信股份有限公司 | Nfc antenna having metal back cover |
CN105261822A (en) * | 2015-09-15 | 2016-01-20 | 惠州硕贝德无线科技股份有限公司 | Nfc antenna assembly and mobile equipment |
CN105870597A (en) * | 2016-04-22 | 2016-08-17 | 惠州硕贝德无线科技股份有限公司 | Dual-antenna scheme sharing metal back cover |
CN105826679A (en) * | 2016-05-12 | 2016-08-03 | 惠州硕贝德无线科技股份有限公司 | Near-field antenna apparatus for three-segment type metal rear cover |
WO2018019080A1 (en) * | 2016-07-28 | 2018-02-01 | 维沃移动通信有限公司 | Nfc antenna structure and mobile terminal |
KR20180058421A (en) * | 2016-11-24 | 2018-06-01 | 삼성전자주식회사 | Electronic Device for Including Conductive Housing |
KR102561104B1 (en) * | 2016-11-24 | 2023-07-31 | 삼성전자주식회사 | Electronic Device for Including Conductive Housing |
CN108110402A (en) * | 2016-11-25 | 2018-06-01 | 康菲德斯合股公司 | RFID transponders |
US11005152B2 (en) * | 2016-11-25 | 2021-05-11 | Confidex Oy | RFID transponder |
Also Published As
Publication number | Publication date |
---|---|
EP2562868A1 (en) | 2013-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20130050045A1 (en) | Multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement | |
US10374287B2 (en) | Antenna system with full metal back cover | |
KR101696953B1 (en) | Dual-feed dual band antenna assembly and associated method | |
US20120249384A1 (en) | Antenna arrangement and a portable radio communication device comprising such an antenna arrangement | |
US20170033461A1 (en) | Low-profile antenna with high isolation for bluetooth and wifi coexistence | |
US9748654B2 (en) | Antenna systems with proximity coupled annular rectangular patches | |
CN104466399A (en) | Microstrip antenna, method for filtering out interference signals and mobile terminal | |
US9325076B2 (en) | Antenna for wireless device | |
JP2017046360A (en) | Antenna device | |
US20120238317A1 (en) | Metal cover for a radio communication device | |
US20130027270A1 (en) | Metal covers for radio communication devices | |
US20120162026A1 (en) | Antenna arrangement for a portable radio communication device having a metal casing | |
US20120223867A1 (en) | Antenna Device and Portable Radio Communication Device Comprising Such Antenna Device | |
Khan et al. | A compact 8-element MIMO antenna system for 802.11 ac WLAN applications | |
US20120162027A1 (en) | Antenna Arrangement For A Portable Radio Communication Device | |
EP2234207A1 (en) | Antenna device and portable radio communication device comprising such an antenna device | |
EP2451008B1 (en) | An antenna arrangement and a portable radio communication device comprising such an antenna arrangement | |
US20120268330A1 (en) | Antenna devices and portable electronic devices comprising such antenna devices | |
US20120293378A1 (en) | Antenna arrangement for a portable radio communication device having a metal casing | |
US20130141291A1 (en) | Antenna arrangements for covering frequency bands | |
KR101912547B1 (en) | An apparatus comprising an antenna having conductive elements | |
TWI657618B (en) | Ultra wide band antenna | |
Valkonen et al. | Dual-feed, single-CCE antenna facilitating inter-band carrier aggregation in LTE-A handsets | |
US9306281B2 (en) | Wireless communication device | |
Loutridis et al. | Printed folded meander line dual-band monopole for TV White space and GSM |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LAIRD TECHNOLOGIES AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHACINSKI, MAREK;KAIKKONEN, ANDREI;GRYNCZEL, LUKASZ;AND OTHERS;SIGNING DATES FROM 20120715 TO 20120817;REEL/FRAME:028810/0612 Owner name: FIRST TECHNOLOGIES, LLC, MISSOURI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LAIRD PLC;REEL/FRAME:028810/0845 Effective date: 20111101 |
|
AS | Assignment |
Owner name: FIRST TECHNOLOGIES, LLC, MISSOURI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LAIRD TECHNOLOGIES AB;REEL/FRAME:030982/0716 Effective date: 20130712 |
|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FIRST TECHNOLOGIES, LLC;REEL/FRAME:032714/0206 Effective date: 20130726 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |